Nut and bolt lock.



or R. MANNON a; H. 0. RASMUSSEN.

NUT AND BOLT ,L'OGK.

APPLICATION FILED AUG. 12, 1911.

1,033,027. Patented July 16, 1912.

wue/wliow (7, J3. Jfazinora H. ali wmzwaew OLIVER RMANNQN AND HANS c. nasiviussnn, oF MAxwnLLQ NEBRASKA. v

NUT ANDY BOLT ocx. v

.Specif1cati m of Letters Patent.

Patented-Ju1y1 6,'1912.

Application filed August 12, 1911. Serial No. 643,773.

T a ZZ whom it may concern: I

Be it known that we, OLIVER R MANNou and Hats 0. RasMUssnN, citizens of the 1 United States, residing 'at-Maxwell, [in the county of Lincoln and State vof Nebraska, have invented new and useful Imprbve ments in; Nut and Bolt Locks, of which the following is a specification,

This invention relates .to nut and bolt locks 'and has for an objectto provide means for positivelyholding the nut against" retrograde 'movement,-the said means being when desired 1?" movably mounted "'onthenut and being adapted to adjustment whereby it can be readily moved to an inoperative position so as to permit the; effective adjustment of the vnut onEthe bolt and which also permits the same, to be' readily removed therefrom,

In the'idrawings, forming a part of'this application, and in which like numerals of reference'designate corresponding parts. 1n

the several "views: Figure 1 is a side view of the nut lock. Fig. 2 is an end viewthereof.

v Fig. 5*is a section-"on line. 4-.4".of Fig. 2,.

Fig. 3 is'a section on line'3-3bf ,Fig. 1. Fig. 43 is asection. on linear- 1 of Fig; 2.

showing the locking element'in a released I position. .36

My improvedmutllock.comprises a: bolt 1 whichis provided at oneend-with the usual head 2. The threaded shank portion of the bolt j has formed therein a" longitudinal slot 3 which slidably receivestlie locking tongue 4 on the washer jpl'atej 5.} 'ljhisconstruction' is such that whenv the {tongue'is engaged the slot as described,,the washerplate w ll be securely held against rotation; The slot 3.0per'1s-at its outer end- "onto the outer end oithe bolt so as to permit-'ofi'the -'ren10valof the washer plate from or' the engagement.

oi the same with the bolt.

Y The-nut-ti, shown herein,:-is; provided with the vusual threaded! bore 7-- to receive the threaded shank of, thQbQltu The passage 8 extends through -the nut and is arranged inparallel ;relation-t0 the borej, and as shown, it has 'slidably fitted'ther'ein a look- ---ing element 9 whose inner end is. adapted to be. extended into one of the concentric series-of passages '10 in the washer plate 5.

' A squared head 11 isfoijmed on the outer end of the locking element,- and is deslgned for the reception of .awrench or suitable tool whereby the element can be readily rotated 'ior purpose to be herelna fter de- 12 which is substantially ofV configuration, beingrincreased in diameter in thedirection of the head so as to' pro'vide"an'incline'd locking surface 13 which is ada ted for scribed. Adjacent to't-he'heagd 1'1,the lock I ing element is provided with a keeper portion 1 engagement with the outer walls 0 the passage 8 so as to hold the'locking element in a released position. The outer end of the passage 8 is of an increased diameter as shown at- 14 so as to receive the keeper por-' tion 12,. and to, permit the inner end of the locking element to be extended beyond the inner surface of the nut 6 for positive interchangeable, locking engagement in the passage 10 l'nthe washer plate. A leaf spring 15 is secured at one endto't-he nut 6, and" is shown-at the opposite end'of the spring as forked,the arms of which-being extended into the annular groove 16 in the locking element, the said groove being positioned between the keeper portion 12 and the head 11, respectively, the' forked portion ofthe spring bearing againstthe outer portion of the locking element 9'so as. to normally hold the-locking element under tension.

' In operation, the bolt is extended through the object to which it is to be secured, and the washer plate is extended I onto the threaded portion of the bolt as'clearly shown in the. drawings. Beforethe nut is applied The nut is applied to the bolt. and moved 130 the bolt, the locking element 9 is adjusted" in the direction of the washer plate. After face 13 -from the outer walls of the passage holding the nut .against retrograd e movement'as will hex-readily" understood.

- Having thus any described the said invention, what we claim is v I A nut lock including a bolt having a Washer plate adjustable longitudinally thereon, a- 'nut adjustably -mounted on the bolt, the said nut havinga' passagetherein disposed-parallel t'o 'ithe axial line of the bolt, the said passage 'havingfone of'its walls the desired adjustment of: the-nut has been. 1 obtained, the locking element -is rotated "manually so asto disengage the locking surformed withan upwardly and outwardly inclined portion forming a recess in the outer face thereof, a sliding locking key mounted in the passage, said key having one of its vertical walls at an-interinediate portion outwardly and inwardly inclined and conforming in configuration with the said upwardly and outwardly inclined portion of said recess, an enlarged head formed on the outer end of said key, said key being providedwith a reduced portion disposed between the outer portion of the said outwardly and upwardly inclined portion of the key and said enlarged head, a spring provided with fork-shaped end secured to the outer face of said nut and having its forked end positioned on said reduced portion of the key.

In testimony whereof we afiix our signatures in presence of two witnesses.

OLIVER R. MANNON. HANS C. RASMUSSEN.

Witnesses E. M. VIN'ZANT, A. F. MANXON. 

